I don’t have this personally, but I’ve heard that the soundtrack to Phantom of the Opera is stellar, especially played loud enough to make the windows rattle.
Hall Of The Mountain King by Apocalyptica
Overture by Bjork (Don’t worry; it’s an instrumental)
Battle of Evermore by Led Zepplin
Requiem for a Dream Soundtrack
Metallica’s version of the Imperial March
Oh Comely by Neutral Milk Hotel
The Ferry Corsten remix of William Orbit’s version of Barber’s Adagio For Strings.
You’re all wonderful. I think I’ll have my epic tastes filled out for a while. I’m also getting some Gregorian chant, which can be solemnly epic in its own right.
I don’t care if I’m too late, I need to recommend pretty much everything ever composed by John Williams. 
The 13th Warrior (Valhalla)
Raiders of the Lost Ark
This is a must.
This is obscure and may be hard to locate but look for the “Overture from A Bridge Too Far” by Jerry Goldsmith
BTW: Good WWII war movie if you have never seen it.
John Williams is, of course, very big on Fanfares. Get his “Best of” doucle CD set and you’ll get:
Star Wars
Empire Strikes Back
Indiana Jones
ET
Superman
Jurassic Park
Olympic Fanfare
Impressive all.
I’ve always really liked the opening theme from The Rocketeer by James Horner
Evidently so did Disney. They continued to use it for several of their advertising trailers for years afterwards.
a lot of Rick Wakeman’s albums have pretty impressive orchestral openings, too. Look at
Journey to the Center of the Earth, and its 25-year-later “sequel”
Return to the Center of the Earth
and
Myths and Legends of King Arthur and the Knights of the Round Table
You also can’t go wrong with lots of classical fanfares, notably Aaron Copland’s often played Fanfare for the Common Man.
My all-time favotie “epic” music is the orchestral work of Ludwig von Beethoven, especiaaly as performed by Herbert von Karajan and the Berlin Philharmonik. The Nine Symphonies and the Overtures will blow you away.
Looking through the list, Priapus mentioned my all-time favorite movie composer, Bernard Hermann. How could I forget him? He did movie music for Orsonn Welles and Alfred Hitchcock. But arguably his best overtures were for Harryhausen’s films. I love the work he did for The Seventh Voyage of Sinbad and Jason and the Argonauts, not to mention The Mysterious Island and The Three Worlds of Gulliver. His music alone made Harryhausen’s monstroud creations seem huge and ponderous.
And for Aussie rock parochialism: Hunters and Collectors Holy Grail
Don’t forget the soundtracks to Braveheart and Gladiator.
When it comes to soundtracks, James Horner is your man for epic scores.
Oh, I almost forgot – Elmer Bernstein’s score for The Magnificent Seven, which was hijacked for Marlboro cigarette ads on TV for ages.
Richard Rodgers music for the series Victory at Sea, which he later turned into the orchestral performance piece Victory at Sea Suite. Impressive opening and closing fanfares.
Hook....there have been 3 Valhalla bands since the '60's, I went to AMG to find out which album this song is on and it is not listed. I orderred the only album released by Valhalla from the 60's. I remember hearing of this album 35 yrs, ago but had forgot about it until your post.Saint-Saens Symphony #2. Wow. Just Wow.
Tchaikovsky’s Symphony #6 is also good to brandish swords to.
Also consider Stravinsky’s Prelude to the Afternoon of a Fawn, Rimsky-Korsikoff’s Scheherzade, and Bernstein’s Jeremiah Symphony.
Journey to the Line by Hans Zimmer. Starts very slow and soft, but towards the end… Wow…
Especially effective if you’ve seen the first season of Carnivale- It’s the last music played in the first season, overlaid with some really amazingly dramatic scenes, and Clancy Brown giving an absolutely -chilling- speech.
Chicago: “Liberation” - some 15 minutes of instrumental Rock.
It would definitely be hard to locate because Goldsmith didn’t write it. John Addison did.
Nobody ever mentions Ron Goodwin in these kind of threads, so I will–particularly his fantastic music for 633 Squadron.
Atom Heart Mother by Pink Floyd. You can practically see the epic hoards marching.
Pish-tosh!
The Ride of the Valkyries appears part of the way into the second opera in Wagner’s Der Ring des Nibelungen cycle. The whole cycle is 4 operas long. The theme’s placement hardly qualifies as “the final part”.